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CYRUS NGUYEN MD
NPI 1750965448
Emergency Medicine in Orange, CA

Active since May 08, 2021PECOS Enrolled
101 THE CITY DR S, ORANGE, CA 92868(714) 456-5239(714) 456-5390 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 4, 2025, Mar 17, 2025, May 8, 2021 (3 updates tracked since 2021).

About Cyrus Nguyen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CYRUS NGUYEN MD (NPI 1750965448) is an individual emergency medicine provider in Orange, California, licensed in California (A187225) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1750965448
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameCYRUS NGUYENCredential: MD
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address101 The City Dr SOrange, CA 92868-3201 · (714) 456-5239 · Fax (714) 456-5390
Phone(714) 456-5239
Fax(714) 456-5390
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMay 8, 2021
Last NPPES UpdateJune 4, 20253 updates tracked since enumeration
NPPES CertifiedJune 4, 2025
✔ NPI 1750965448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A187225
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
101 THE CITY DR S, Orange, CA 92868
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cyrus Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1355853326
PECOS Enrollment IDI20250625001266
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Cyrus Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of
0.3 mi
Emergency Medicine
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 219 clinicians in this Medicare group
NPI 1154379394 (714) 456-8068
Avalon Medical Development Corporation
40 mi
Critical Access
100 FALLS CANYON ROAD
Avalon, CA 90704
  • Reassigned Medicare billing, California enrollment
  • 42 clinicians in this Medicare group
NPI 1346250347 (310) 510-0700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cyrus Nguyen's NPI number?

The NPI number for Cyrus Nguyen is 1750965448. It was assigned to this individual provider in the NPPES registry on May 8, 2021.

Where is Cyrus Nguyen located?

Cyrus Nguyen practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-5239.

What is Cyrus Nguyen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Cyrus Nguyen enrolled in Medicare?

Yes. Cyrus Nguyen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Cyrus Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cyrus Nguyen reassigns Medicare benefits to 2 organizations: Regents Of The University Of (Orange, CA) and Avalon Medical Development Corporation (Avalon, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cyrus Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Cyrus Nguyen was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.